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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: ade93 on April 08, 2011, 05:37:04 PM

Title: How to measure the rate of reaction of silver halides.
Post by: ade93 on April 08, 2011, 05:37:04 PM

Hi,
 I would like to know a method to measure the rate of reaction of each of the following reactants; AgCl, AgBr, and AgI. The reactions has to be unimolecular, that is in this case, when these reactants are exposed to light forming Ag+Cl/Br/I. I had the idea that for each measurement, I give the silver halide light for a fixed amount of time. Then I separate the silver formed from the unused silver halide and measure the weight. But then I would not would not be measuring the rate of reaction that accurately, or not even at all. Do you have any good methods to share? It would be best if concentration or mass vs. time graphs could be made. In school we have those programs and tools to measure mass per time graphs.
  I have been thinking about this for weeks now, and I guess I am too unexperienced to come up with any good methods. I have tried to google regarding this matter but without any further success.
   // Adam, Sweden